Many applications are moving "onto the web". The advantages of doing this are clear: web technologies make cross-platform support easy, and the web based nature removes the need to install additional software (or access a system where the software is already installed!).
PaperCut NG comes "out of the box" with a web based interface for administration. There is no need to configure your own web server however, because PaperCut includes its own. Modern web design techniques such as tabs, effects and transitions even make PaperCut's web interface feel like a traditional desktop application.